【電】 tow-phase four-wire system

二的英語翻譯：

twin; two
【計】 binary-coded decimal; binary-coded decimal character code
binary-to-decimal conversion; binary-to-hexadecimal conversion
【醫(yī)】 bi-; bis-; di-; duo-

相的英語翻譯：

each other; mutually; appearance; looks; look at and appraise; photograph
posture
【化】 phase
【醫(yī)】 phase

四線系統(tǒng)的英語翻譯：

【計】 four-wire system